Actinides AMS on the VEGA accelerator

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dc.contributor.authorHotchkis, MACen_AU
dc.contributor.authorChild, DPen_AU
dc.contributor.authorFroehlich, MBen_AU
dc.contributor.authorWallner, Aen_AU
dc.contributor.authorWilcken, KMen_AU
dc.contributor.authorWilliams, MLen_AU
dc.date.accessioned2023-10-20T00:27:47Zen_AU
dc.date.available2023-10-20T00:27:47Zen_AU
dc.date.issued2019-01-01en_AU
dc.date.statistics2023-10-19en_AU
dc.description.abstractThe VEGA 1MV accelerator at ANSTO is designed to be a highly versatile AMS instrument. In this paper we focus on describing those aspects of the system that are designed to optimise its performance for actinides isotopic analysis, in particular the implementation of fast isotope cycling and multiple isotope detection methods to enable isotope detection across a wide range of rates and currents. Charge state yields are reported in the energy range from 0.3 to 1.0 MeV with helium gas stripping, showing that the highest yield for the 3+ charge state occurs around 1 MeV and exceeds 40%. Accuracy and precision for uranium isotope ratios are shown to approach 1% over a wide range of concentrations and isotope ratios. The ionisation efficiency for plutonium is shown to exceed 3%, leading to overall detection efficiency over 1%. In the absence of background, this leads to sub-attogram detection limits for several Pu isotopes including 244Pu. Crown Copyright © 2018 Published by Elsevier B.V.en_AU
dc.description.sponsorshipWe acknowledge the financial support from the Australian Government for the Centre for Accelerator Science at ANSTO through the National Collaborative Research Infrastructure Strategy (NCRIS).en_AU
dc.identifier.citationHotchkis, M. A. C., Child, D. P., Froehlich, M. B., Wallner, A., Wilcken, K., & Williams, M. (2019). Actinides AMS on the VEGA accelerator. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 438, 70-76. doi:10.1016/j.nimb.2018.07.029en_AU
dc.identifier.issn0168-583Xen_AU
dc.identifier.journaltitleNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atomsen_AU
dc.identifier.pagination70-76en_AU
dc.identifier.urihttps://doi.org/10.1016/j.nimb.2018.07.029en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15155en_AU
dc.identifier.volume438en_AU
dc.language.isoenen_AU
dc.publisherElsevier B. V.en_AU
dc.relation.urihttps://doi.org/10.1016/j.nimb.2018.07.029en_AU
dc.subjectMass spectroscopyen_AU
dc.subjectActinidesen_AU
dc.subjectPlutoniumen_AU
dc.subjectUraniumen_AU
dc.subjectAccelerator experimental facilitiesen_AU
dc.subjectANSTOen_AU
dc.subjectAustraliaen_AU
dc.subjectMeasuring instrumentsen_AU
dc.subjectIsotopesen_AU
dc.titleActinides AMS on the VEGA acceleratoren_AU
dc.typeJournal Articleen_AU
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